Automatic time-stamp.



, Patented Mar. 277V 1900, L

NI.AH."SUREN. AuT'omvA'Tflc rms STAMP.-

(xppunmon and July 1v, 1897.)

(lo Model.)

Np, 646,0l3. Patented Mar. 27, |900. N. H. suman.

AuToMATlc TIME STAMP;`

(Applcatin led July 17, 1897.) (No Model.) 6 Sheets-Sheet 2. l

L .T T

'1H' Jg I el@ c 1 No. 646,013. Patented Mar. 27, |9on. v

N. H. suman.

AUTUMATIC TIME STAMP. Y

(Application led July 17, 1897.)

ashun-sheet a.

Patnted Mar. 2 7, |900.

N H SUREN AuToMAnc TIMESTAMP. (Application led July 17, 1897.)

No. 646,0I3.

(No Model) Patented Mr. 27, |900.

6 Sheets-Shel 5,

N. H. SUREN.

AUTOMATIC TIME STAMP.

(Application led July 17, 1897i) v (no mami) No. 646,0l3, Patenteduar.27, |900. N H. suman. AUTOMATIC TIME STAMP.

I (Application led July 17, 1897.) (No Model.) v 6 Sheets-Sheet 6,.

- UNITED STATES PATENT OFFICE;

N ATHN lSUREN, OF NEWTON, MASSACHUSETTS, ASSIGNOR TAO THE GAME.

WELL FIRE-ALARM TELEGRAPH COMPANY, OF' NEW YORK, `N. Y.A

jAUToMATlc .TIM E-STAM P'.

srnexsloacrron forming part of Letters Patent No. 646,613. dated March2'?. loco. Y Applicants mamy 1r, 1897. serai No. 644.939. (No man1.)

@ZZ whom i may 007%06271: spring, a pallet for said escape-wheel, and aBe it known that I, NATHAN H. SUREN, of letfo'or releasing deviceforsaid pallet which Newton, State of Massachusetts, have inisperiodically operated. vented an Improvement in. Automatic Time- Otherfeatures of myinvention are herein- 55, Stamps, of which the followingdescription, after particularly set forth inthe following in connectionwith the accompanying drawdescription; f' l ings, isa .specificatiomlikeletters and g Figure 1 shows in sideelevation fa, time Y ures on thedrawings representing like parts. stamp embodying myinventioninwhiclripor- My invention has for its object to improve tionsof the framework thereof are removed 6o Azo the construction of time anddate printing for clear-ness. Fig. 2 is a front elevation 4ofstamps,morecommonlycalledtime-stamps, the time-stamp .shown inFig. 1.Fig. 3 isa Y to the 'end that all the datefprinting wheels, plan View ofthe time-stamp shown in Figil. as well Vas the time-printing Wheels, maybe Fig.- 4 is a sectional detail of r-the springei'm'- automaticallyoperated,therebyobviating the pelled sha-ft hereinafter referred toandthe 65 1 5 necessityof setlingsaid dateprintin-g wheels, -adjoiningparts, the carriers 'o n; said (shaft4 as is now customary in man'time-stamps. being shown in vertical section. Figg is a The inventionalso has for its object to proside View of one of the carriers-shown insecvide a novel and compact form of actuating tion in Fig. 4, one ofits'face-plates being remeans for the time and vdate printing wheels,moved. Fig. 5 is a horizontal section oflofnev 7o 2o whereby'asingleactuatingspring may be emof the carriers. Figs. 6'to1`6,inclusive, are

ployed for all of said wheels. details of the time and datek printing'wheels l The invention Vconsists in a time-stamp emand-adjacent parts tobe referred to.` Fig. 17 i 'bodying the followingfeatures: irst, meansis a detail of the parts provided vfor changing for automaticallyoperatingthe'date-printing the number of characters which the day- 75wheels, as well as .the timefprinting Wheels; wheel will present `forthe dinerentmonths.

second, mea-nsforoperatingthe minute-print Figs., 18, 19, 20, 21, and 22show'detailsl of ing Wheel step by step and for operating the'the.year-printing Wheel and its coperating other time-printing Wheeland all the d'ate-v parts; Fig. 23, a detailof the'controlling (iejprinting wheels by or through the in'edinm of vieefr the month ofFebrnaryyFig.' 24, a de- 8o 3o said minute-printing Wheel; third, nea'nsfor tail showing one pairV of' plauetlg'e'a'rsconautomaticallycontrolling the day-printing tained in one ot' the carriers;Figs.25'an'd 26,1 wheel to provide for variations in the n nm detailsshowing two positions'ofthe releasin'gj j bei` of days for`all thedifferent months -of the device for the minutewheeli Fig. 27 is asecyear; fourth, means lor further automatiction of the printed strip ofpaper; IFigu28, a 85 v ally controlling said day-printing wheel. todetail showing 4the electromagnets for releas-l provide forvthe n'mberof days occurring in ing the' typeswheels and for operating jthe`thelnonvthof Februaryin leap-years as cou-v platen.

e trasted with 'other years and also in the month" ln'th'e timestampheneinafter described the of February in century years that are notprinting operation is designed to'be eiected vgo L 4o leap-years;fifth,a spring which'serves as the p in the usual manner-as, forinstance`,'by the actuator for all the time and date printingvoperation' of an electromagnet-and the said wheels; sixth, aspring-impelledshaft'and, e'leetromagnet may, for.example,lbe arrangedmeans operatively connecting the time and to be operated -conjunctivelywith or by an date printing Wheels with said shaft, whereby ordinaryMorse register or recorder, included; 9 5

thepowerof the springis transmitted t the ser in or forming a part of anelectric signal "sys-4 ries of printing-wheels in a manner to permittem, so thatupon the reception ofa call of an equal distribution of thepower to all the 'time-stamp;will be automatically operthe wheels'Whether operating singly or tofl ated to print upon a strip of paperthe exact f gather, and, seventh, a spring which 4serves y-tinleand dateatwhich the call is received. "rco j A'5o as the actuator for all thetime and date print- The printing :mechanism comprises a vering Wheelsand a single escape-wheel tisaliymovable platen or presserf, connected el siepi-e to and operated byja lever f',pivoted at f2 to the'frameof the,'ijachine, and carr ingan armature f3, Vwhich "isoperated by t eelectromagnet f4. lThe platen finwhen raised serves to press astrip'of'paper' or the like up against a series or row of time and date printingwheels, there being herein shown a minwheel d, and year-,wheel-e,

platen f. I 7, 10, 13, 16, and 19) are driven onto or other-- nte-wheela, hour-wheel b,day-Wheel c, monthsaid wheels ha'ving upon theirperipheries-'suitabletime or date printing characters, as the casemaybe.'

Any usual or suitable inking-strip f5 is arranged between theprintingwheels and The printing-wheels a, b, c, and vrZ-(see Figs..

-wi'se secured, respectively, to short sleeves a',

I n v A b', c', and d and all of said sleeves are mounted loosely uponan arbor g, which is supported hen'gaging'thepinion d2, the gear fLpinion' c?, the gear'j engaging and the gear kengaging the pinion a2.'The gears h --the gears t" and'j are loosely mounted upon Which'are inturn mounted sleevesy 0 a',

The shaft Z (see Fig.

loosely on said shaft Z.

4) is rotated-by means of a .coiled spring fm,

arranged within a barrel n atene end of the shaft, the inner' end ot'said spring being secured to said shaft Zand the outer'end to saijdbarrel n, upon the said shaft Z` and is suitably supported by, yet freeto be revolved in, abracket Z', which's attached to the inner face oione quently kis engaged the side plate A of the side plates. u on itsexterior gear-teeth n', (see Figs. 1 and 3, producing, as it were, 'agear'which is engagedby a 'pinion n2, fixed upon a shaft n3, alsojournaled inthe side having fixed to it a ratchet-Wheel n4, which by aspring-pressed paWl n, pivoted at 'n6 tothe framework of the machine.One extremity of the shaft its projects through and is squared 0rotherwise adapted to receive upon ita key or the like, by means of'which said shaft n3, and consequently the barrel n, maybe rotated-trowind up the mainspri'ng m. has a constant tendency to turn' and bymechanism to be described to rotate any or all ofthe driving-gears, andconseto rotate the time and date printing wheels, and suitable palletsare providedfr said time and date printing wheels, as will behereinafter described, for restraining them from rotation' except whenreleased.

The driving-gears-h, z'y',`and k each have secured to' one side or facethereof, coincident lwith their axes, sun-gears h', 17,3", and 7c',which are 'made very much smaller in diameattached, and, as shown Zo areprovidedmrlfdriving said pinions,

and k are loosely mounted upon a shaft Z, which is journaledv in theside plates A A of the machine, and" se'rv bearing' the pinions. One ofsaid carriers-f1 as, for instance, the central carrier p-is se and saidbarrel n is mounted loosely` The barrel n has formed The mainspring m'the shaft Zl the carriersv o and q,

j ournaled therein one or more pairs of similar ter` than thedriving-gears to which they are in Fig. 4,`the sungears h' and j aresecured to the right-hand sides or faces of the driving-gears h and j,and the sun-gears -fzl and 7c are secured to the left-hand sidesortac'zesof the driving-gears z' and 7c. vThe driving-gears h Zj 7c areall disposed on theshaft Z at substantially-equal distances apart, andin the spaces between substantially fill said spaces.

o, p, and q (see Figs. 5 and are made sub-j', stantially alike, and eachconsists of a circu# ,l

` the saiddriving-gears the collarso', @and q are located, -theybeingmade of a width to` l The carriers, "-1

lar shell or case containing a number of pinions,'aswill.be described.`The circular shell or case is herein shown as mad-e in t'WopartSf; l,

one part comprising v with a circular recess 45 at each side or face,

concentric to the axis of*l the disk, tothereby n y forma central hub46, and said disk has also" formed in' it recesses 47 for the pinions.`The othery part of the shell or caseconsists of a iiatring oia shapeand size corresponding to V the shape and size of the disk and having acircular" .hole through it, corresponding in shape and size with thecircular recess in the disk, and said iiat'ring 48 is secured to the.'di'sk'an'd covers ,orincloses the recesses 47,

ontain the pinions., and said ii-at ring v which c .a

sa hearing'for one end ofthe shafts cured direct-ly to thespring-impelled shaft Z carrier-so' and q (see Figs. i and 5) aresecured, respectively, to the sleeves o and q' by set-screws o2, andsaid sleeves o q' are iitted loosely upon the shaft Z and extend fromtheir respective carriers -o and q, to which they aresecured, towardeach Aother and through the two middle driving-gears 'andj to theopposite sides of said gears", and at their inner or adjacent endssun-gears o3 and o4 are formed'or provided, which are locatedwithinplates AA' and f but at opposite sides of the carrier p. One or morepairs of intermeshing planet-gears 210s are contained in said carrier pand loosely journaled therein, two pairs being herein shown, and thegears of each pair are offset relatively to each other, (see Fig. 24,)so that the planet-gear p of each pair lies close to one side of thecarrier-and is engaged bythe sun-gear 0?*and the planet-gear p3 of eachvpair vlies close to the other sideof said carrier vand is engaged bythesun-gear o4. Each of like-the carrier p., has

'intermeshing and odset planet-gears p2 pf. The planet-gears p2, carriedby the carrier q, engage the sunfgearj, which, is secured to thedriving-gearj and mounted loosely upon the sleeve q,'and theplanet-gears p3, carried by said carrier q, engage the sun-gear la',fixed-to the driving-gear 7c, which is placed loosely. on said shaft Z.The planet-.gears p2, carried by the carrier o, engage the sun- IOO bymeans of a set-screw 1o.y The remaining gear h', fixed to thedriving-gear h,- ,which is placed loosely upon said shaft Z, andthe'.planetgears p3, carried by said carrier o, engage the sun-gear 1l',which is xed to the driving-gear 'i and which is looselymounted uponthe-sleeve o. The spring-impelled shaft Z turns to drive any one or moreof the driving-gears which maybe released; and* when thus permitted to.rotate the, carrier pfxed' thereto, turns in unison with it and carriesthe planet-gears p? and p5 borne by it bodily around the sun-gears oBand o, and during such rotary movement of the carrier p if one ofs'aid`sun-gears,o3 or o* remain stationary the planet-gears which are inengagement' with it will be revolved and in turn will revolve theplanet-gears engaged by them to impart rotary movement to the othersun-gear. As, for example, if the sungear o4 should remain at rest asthe carrier p revolves the planet-gears p3, engaging said sun-gear o,will be revolved and will revolve the planet-gears p2, whichmeshtherewith, and the latter will in turn impart rotary-motion to thesun-gear o? and sleeve o', carrying it, or, if the sun-gear o3 shouldremain at rest as the carrier p revolves, the planet-gears p2, engagingsaid sun-gear o3,.will be revolved and will revolve the planet-gears p3,whichmesh therewith, and the latter will in turn impart rotary motion tothe sun-gear o4 and sleeve Q', carrying it. .The sleeves oand q carrythe carriers o and q, and hence the power of the mainspring can thus betransmitted by the shaft Zand carrier 1?, xed thereon, to either carriero or q, as required. The. power transmitted to the carrier o is employedto drive either or both of the gears h and i, and the power transmittedto the carrier q is employed to drive either or both of the gears j andk. The power from the carrier o is transmitted to the driving-gear h inthe following manner, viz: As said carrier o rotates its planet-gears p3travel around the sun-gear 'fwhich at such time remains stationary, andare revolved and in turn revolve the planet-gears p2, which engage anddrive the sun-gear-h, fast to said driving-gear h, and the power fromsaid carrier o is transmitted to the driving-geari in the followingmanner, viz: As said carrier rotates its planet-gears p2 travel aroundthe sun-gear 7L', which at such time remains stationary, and are re-'volved and in turn revolvey the planet-gears p3, which engage and drivethe sun-gear z', fast to said driving-gear t'. When both thedriving-gears h and fi are released, so as to operate together,then thecarrier o and planetgears p2 and .193, carriedby it, and sun-gears t twill all revolve together without relative movement.- The power from thecarrier q will be transmitted to the driving-gearsj and k in the 'samemanner as the power is transmitted from the carrier o to thedriving-gears h and fi, as above described, and said drivinggears willoperate together also, as abovedej ,and karereleased, so as to operatetogether, then -said gearsand all the' parts connected theretdwill turnin unison with 4 the shaftl without'relative movement. Thus it will .beobserved that the central carrier p serves as apgean-spf-transmittingthe power. from ,the spr g-.impel'led `shaft Z tothe carriers -o and 'q,'at said jcarriers o and q serve as actuators of the driving-gears h,t', j,- and-ligand that the power of the springmwill be transmitted inequal proportions to all of the driving-gears It, e', j, and k while thesaid gears are held stationary or while they are operating.

The spring-actuated. timeand date printin the normal condition of whichoperates to momentarily release lthe escapement mechanism. The time anddate printing wheels a, b, c, and d each have secured to them at one arerespectively engaged byV pallet -toothed ihafte'r referred to aspallets, which are pivf a", that is supported by the frame of themachine.` All of said pallet-toothed releasing devices or'pallets,vexcept a5, are normally heldin engagement with their escape-wheels againstthe stress of the main 'actuating spring m, except when f-theyareoperated tov release said wheels. Each escape-wheel is time or ydateprinting characters carried by its respective printing-wheel and will berolet is vibrated. .f

The printing-wheels a b c d each have sethe escapewheel a cam orprojection a", b", c7, and C17, adapted to turn in u'nison therewith,and said cams project radially nearly to the periphery of said wheels,and the downwardly-projecting arms of the pallets b5, c5, and d5 eachhave on one side a lateral projectionlOO, which lies in the path ofengagement of the cam on the next adjacent wheel, andon every completerevolution of one of said printing-wheels,except themonth-wheel, the camthereon will engage and operate to rock the pallet of the printing-wheelnext to it, and thereby release said adjacent printing-wheel and allowit to advanceone step. Flor example, it will be seen that the cam a7 `i"l;he minute-printing wlieel a. operates to mdk the pallet b5 of thehour-printing wheel wheel b operates to rock Vthe .pallet c5 of thedayfprinting wheel c 'to advance said wheelA e one step for each comlete, revolution'lof; said hour-printing wheel ,andso enfoithe scribed.When all of the driving-gears 711?,

releasing devices a5 'b5 c5 d5, which will be herenotched to correspondwith the number ofv ing wheels a, b, c, and d are controlledby anescapement mechanism; which is in turncontrolled by an electromagnet.7', a change p side or face escape-wheels d3 b3 c3 d3, which otally orloosely mounted upon a rod or bar by springs d, and said spring-pressedpallets serve to hold the printing-Wheels at rest' roo tatedintermittingly or step bystep as itspalcured thereto at the oppositeside or face from b to advancesaid wheel b one step fore completerevolution of said minute-prin hg" wheel (t, and the cam b'I of thehour-printing series. rlhe pallet oof the minute-printing t.

. wheel a has fixed toa downwardly-projecting arm a', which is providedat its lower end with a laterally-projecting pin or stud a9,which-isengaged by the shouldered end s', formed or provided on an arms, secured to a rock-shaft s2 'ournaled in the framework,

which latte'r has secured to it a lever s3, carrying the armature s4 ofan electromagnet fr. The upward movement of the arm s incident to thearmature moving toward or closing upon its poles lifts the shoulderedend s above and out of the path of engagement of the stud a9, therebyreleasing the pallet-car:

. rying arm asand permitting it to be swung to the right, Fig. 1, whichmovement permit-s the pallet d5 to rock, and thereby release itsescape-wheel as, but, pallet-like, as one tooth of the pallet disengagesthe escape-wheel the othertooth thereof is brought into engage` mentwith the escape-wheel, and the latter is thus allowed to advance half atooth; but the stress of the main actuating-spring m on the escape-Wheelthus released causes saidwheel to in return act upon the pallet which isin engagement therewith and toy rock said pallet in the opposite way,and thereby cause its j other tooth to' return and engage theescapewheel and to also return the pallet-carrying arm a'to its normalposition, and as the pallet is thus rocked the escape-wheel will beallowed te advance another half a tooth. Thus on each complete vibrationof the pallet the escape-wheel aitwill advance a single step.

hen the arm s is raised, the stud agslips'off of the shouldered end sthereof and, moving aside aspring-pressed finger S5, pivoted to said arms, will occupy a position between said spring-pressed finger and thearm, (see Fig.f26,)the spring-pressed finger beingheld at such time bythe stud a9 bearing upon lit;

but as the arm a8 is immediately moved inthe opposite direction beforethe arm 's resnmes its normal position said stud a9 will be withdrawnfrom between the finger 85 and the arm, as shown in Fig. 25, permittingthe finger S5 to rise and resunie its normal relative position to thearm, at which time the stud a9 will be brought to bear against the-endof said finger, and the parts will remainin'su'ch position until the arms resumes its normal position, as shown in Fig. 8, when the stud a9 willslip olf of the end of the finger S5 and will again engage theshouldered end of the arm. Therefore it will be observed that but asingle vibrationy of the arm as is permitted fer each completevibration'or excursion of the armature.

The electromagnet r is energized at regulr intervals of time-as, forinstance,'oncej every;

minute-and by the releasing device operated b y it the escape-wheel, andconsequently the minute-printingwheel a, will be advanced intermittinglyor step by step, and by means of the cam a7 on said minute-printingwheelqal the: pallet of the hour-printing wheel bf'will be operated toadvance said hour-wheei'cnstep on each complete revolntiong'oftlie'iminand to automatically operate the day-printing wheel to providefor the variation in the number of days occurring in different months ofthe year I provide a bell-crank lever t, pivoted at t to a stud on theframe of the niachine, and one arm of the said bell-crank lever is actedupon by a spring t2, tending to move it in one direction, and the otherarm of said bell-crank lever t is acted upon by a rctatable cam u,tending tov move it in the opposite direction. The bell-crank lever t-is provided with an extension t3, pivoted to one arm thereof, which hasattached to its under side one end of a leaf-spring t4, the outer orfree end of said spring projecting through a slot 015, formed in anextension 50 on-one arm of the pallet c5 of the day-printing wheel c.

The extension t@ on the bell-crank lever t is adapted to be moved by arotatable cam u into or out of coperative relation withtheY extensiont5, are each made of a different length, and they are arranged closetogether side by side, and being all mounted upon the same rod or bartheir outer or free ends will terminate, respectively, at threedifferent distances from said rod or bar, and the extension a of thebell-crank levert may be brought `into coperative relation with one,two,;or all of said arms, as will be described.

IOC

The bell-crank levers 1, 2,-and 3 are disi posed on the rod or bar a4opposite the cam c7 of the day-printing wheel c and are made IIO quitethin and arranged close togetherfse',

that all of them may be engaged andoperated by said cam c7, and the armsof said belldrank 1,evers which are engagedby said cam Ciara/made ofdifferent lengths, so as to be engaged successively by said cam, and thevariations in length being equal tc the disdisposed on the periphery ofthe day-printing wheel. The arms of said-- bellcrank levers '1, 2, and3, which are engaged hyfthecam c'f,A 'are so located relatively to the'other parts vthat the cam c7' will engage the lever 3 when:theday-printing wheel cgis operated to move the twenty-eighth printingcharacter out of printing position and to bringfthe twentyninth,-printing character into printing position-and to engage the lever 2 whenthe` day- `pxi'iiting wheel-c is operated to move the twenty-ninthprinting character out of printin'gpbf'sition and to bring the'thirtiethprinting lcliraeter into printing position and to en yage vtances apartthat the printing characters are tlre'glgjger 'when the day-printingwhe' [cis-.

operated to motie the thirtieth printing character out of printingposition and to bring the thirty-first printing character into printingposition.

It is designed and intended that the pallet c5 of the day-printing wheelc shall be vibrated yby the cam 197 on th c hour-wheel b once on eachcomplete rotation of said hour-wheel band to thereby release and permitthe advancement of said day-printing wheel c step by step and that saidpallet c5 shall also be vibrated by theextension t3 of the bell-cranklever t in case less than thirty-one printing characters of saidday-wheel c are to be presented to printing position for use-as, fo'rexample, said extension t3 shall vibrate said pallet c5 once if thirtycharacters only are to be presented to printing position for use, twiceif twenty-nine characters only are to be presented to printing positionfor use, and three times if twenty-eight printing characters only are tobe presented to printing position for use-and it is furthermore designedand intended that the operation of said extension 3 once, twice, orthree times, as may be required, shall Je effected or controlled by saidbell-crank levers 1, 2, and 3, which are operated by the cam c7, andthat the cooperative relation 4of said extension t3 and bell-cranklevers 1, 2, and 3 shall be determined by the rotatable cam u. Inoperating the day-printing wheel thirty-one successive steps to presentits thirty-one printing characters successively to printing position tocorrespond to a month having thirty-one days the extension 153 of thebell-crank -lever t will occupy its outermost position andwill be out ofcoperative relation with the arms 11, 12, and 13 of all of saidbell-crank levers, and the cam b", which moves in unison with thehour-wheel, 'will engage and operate the pallet c5 once for cachcomplete revolution of said hour-wheel and will thereby advance theday-printing wheel c intermit" vgly thirty-one successive steps, and asthe pallet c5 is operated by the cam c7 to advance the day-wheel c tobring its twenty-eighth printing character out of printing position andto bring the twenty-ninth printing character into printing position thecam c", which moves in unison with said dayprinting wheel c, will engageand operate the bell-crank lever 3, and as the pallet c5 is againoperated by said cam D7 the cam c7 will engage and operate thebell-crank lever 2, and as the pallet c5 is again operated by said cam227 the cam c7 will engage and operate the bell-crank lever 1; butduring the successive operations of said bell-crank levers 3, 2, and 1the said levers will not in turn operate the extension t3, because thesaid extension isremoved from the path of movement'or engagement ofthe'arms 11, 12, and 13 .jot said bell-crank levers. It will thereforebe seen that the day-printin g wheel c will successively present itsthirty-one printing characters to printing position for use. When it isdesired to present but thirty printing characters to printing positionto correspond to a month having thirty days, the extension t3 will bemoved by the cam u into position to cooperate with the'arm 11 of thebell-crank lever` 1, and with the parts in this position theday-printing wheel c will be intermittingly operated, as abovedescribed,

by the cam b7 operating its pallet c5 until the thirtieth printingcharacteris presented-to printing position, and then as the cam 197again' operates the pallet day-printing Wheel c one more step and carrythe thirtieth printing character out of printing position and to bringthe thirty-first printing character into position thecam c7 will operatethe bell-crank lever 1 and its arm 11 will engage and depress theextension t3 and spring carried by it, and the latter by its engagementwith the pallet c5 will rock said pallet and cause the day-printingwheel c to c5 to advance the immediately advance another step and carrythe thirty-first printing character', which has justbeen brought intoprinting position,outof printing position and bring the irstprintingcharacter into printing position. The thirtyfirst printing characterwill thus not remain in printing position,and consequently but thirtyprinting characters will have been presented to printing position foruse. -When the eX- tension lii is moved into cooperative relation withtwo or all of the arms of said bell-crank levers l, 2, and 3, theoperationsabove described will be carried out and the pallet c5 will bevibrated two or three times in quick succession by the extension t3 andtwentynine or twenty-eight printing charactersallowed to occupy andremain in printing position for use, the other printing characters beingrapidly moved out of printing positionthat is to say, assuming theextension t3 to be in engagement with all three bell-crank levers, asthe cam 217 rocks the pallet c5 and causes the cam c7 to engagethebell-crank 1ever 3 the said bell-crank lever will in turn depress theextension t3 and will operate the pallet c5 to cause the cam c7 tooperate the IOO IIO

bell-crank lever 2, Whichin turn again depresses the extension it",which again will operatethe pallet c5 and cause the cam c7 to engagethe4 bell-crank lever 1, which in turn again depresses the extension t3and operates the pallet c5 to advance the day-printing wheel c and bringthe first printingcharacter into printing position.

'lheyear-printing wheel e (see dotted lines,

Figs. 15, 1G, 19, and 20) is placed loosely the montl1-wheel d engages aprojection 100 on one ltoothed end of said pallet e5 and moves The camd7 of' said pallet so as to throw its other toothed end into engagementwith the notched Wheel e3,and said toothed end is so shaped as ,to movesaid notched Wheel c3 a short distance when engaging it, and as soon assaid cain disengages the other toothed end of the pallet the spring willoperate to force said disengaged toothed end into engagement Withthenotched wheel,.

withdrawing its other toothed end, and said toothed end thus forced intoengagement With the notched wheel is so shaped as to advance saidnotched wheel further, and thereby complete a single step of saidyear-Wheel e for each complete vibration of the pallet.l A retainingpawlis fixed to said pallet, which engages the year-wheel e and serves tohold it at rest, and said pawl is operated in unison with the pallet e5.i

The cam .d7 is made doubleended-z1 e., it has a cam-surface at each end,Jso as to operate the yeai-printingivheel t every halfrevolution of themonth-wheel, which latter, as stated, has printing characters `fortwentyfour months. I

The cam u is journaled loosely upon a stud u', projecting from the frameof the machine, and has fixed thereto a pinion u2. The periphery of thesaid cam u is divided into twelve divisions.(see Fig. 22) for thetwelvemonths 'of the year, and each division of the cam,

with theexception of that particular division which is broughtintooperative position during the month of February, is shaped so as toengage the bell-crank lever t and hold it in different positions inorder that its extensionv is may occupy different positions relative tothe bell-crank levcrsl, 2, and 3,'said extension being removed fromengagement' 'with said levers for months having thirty-one days andengaging the lever 3 for months having thirty days and engaging thelevers 3 and 2 for months having twenty-nine days and engaging thelevers 3, 2, and l for months having twenty-eight days. That division ofthe camu which` is allotted to the month of February is cut away and amovable slide n4 (see Figs. 22 and 23) is located in said cut-away.poition, it having a slot u?, adapting it tofbe placed upon the stud11' and enabling the slide to be moved thereon diametrically ot' thc camu. The slide a, which is movable diametrically of the cam u, has twopositions, determined by means to be hereinafter described, and when inone position the beil-cranklever t-bearing uponor engaging it will beheld so that its extension t3 will engage or coperate with thetwobell-crank levers 3 and`2 for a.

- pinion r1.2 mesheswith .'65

month having twenty-nine days, and when said sldeis moved into its otherposition the bell-crank lever t engaging it will be-.held so thatitsextension t3 will engage or coperatie with all three of the bell-cranklevers 3, 2 and 1 for a month having twenty-eightdays. The a gear at,xed to the, sleeve of the month-Wheeld, (see Figs. 2, 15,-

` and 16,) and said month-wheel has on its 'pe-l ripher'y twenty fourprinting tharacters,l p

enough for two years, and the relative sizes of pinions u2 and gear n3are such that the cam a .makes tivo revolutions for each revolution ofthe month-wheel d. The year-print-` ing wheel e is in this instanceprovided With twenty-four year-printingcharacters, and the saidWheelmhas fixed thereto a cam us, which 'is adapted 't'oeugage and morea lever a7, that is loey mounted on the cross-bar a4. The lever a7 isprovided withan arm 11S, which is' brought into the path ot' engagementof the slide a4 at predetermined times by the cam a6 to project saidslide more or less radially from the rotatable cam a, upon which it ismounted. The cam ne, fixed to the year-wheel e, is formed or providedwith f'rojections ug,

Whichoperate through the medium of lever u? lto move the arm as in adirection to project the slide ai upon the occasion of leapyears, atwhich times the day-wheel will be operated through the medium ofbell-crank levers 8 and 2 and the extension f3, so as to presenttwenty-nine days in the month of February. The cam ufl is also so formedas to permit of the slide n retaining its retracted position upon theoccasion ot' those years which are not leap-years and century-yearswhich follow four `years after the previous leap-years, but which arcnot leap-years, at which timesthe extension 3 will be permitted toassume operative relation with all of the bell-crank levers l, 2, and 3.

Referring to Fig. 28, the printing-magnet is shown at fhand thotype-wheel magnet is shown at fr, and for simplicity of construction thecores of said )magnets are secured to a single intermediate yoke '1150.r6 represents a cirf' y cuit-closer operated by a clock for closing thecircuit of the type-wheel magnet 1' at regular" intervals of time, and7*'0 represents a circuitcloser for closing the circuit of theprintingmagnet f4. To' prevent sparking, I have arranged aresistance-coil rs) in a short circuit between `the coils of each ot'said electromagnets. I claim- 1. In a time-stamp, the combination of anumber of printing-wheels,releasing devices therefor, a spring-impelledshaft, a number of driving-gears mounted loosely on said shaft andadapted to operate said printing-wheels,

and devices independently connecting said gears with said shaft,substantially as described.

2. In a time-stamp, the combination of a. numberof printing-wheels,releasing devices IIC therefor, a number of driving-gears for said ,l

printing-wheels, a spring-impelled shaft on whichsaid driving-gears aremounted and by x,

which they are indepcnden tl y operated when their respectiveprinting-wheels are released, substantially 'as described.

3. In a time-stamp, the combination of a number of printing-wheels, anescape-wheel and pallet for `each printing-wheel, and palletoperatingdevices, andV means for moving. the

said ,wheels rifiijvard' consisting of p a rotatable` shaft,animpelling-spring therefor,and means operatively connecting said rotatingshaft with each of said printing-Wheels independently, substantially asdescribed.

4. In a time-stamp, vthe combination of a number of printing-Wheels, anescape-Wheel and pallet for each of said printing-Wheels,periodically-operated releasing devices for said pallets, ay rotatingshaft, an impellingspring therefor, and devices operatively connectingeach of the printing-Wheels with said rotating shaft whereby they may berotated independently when released, substantially as described.

5.A In a time-stamp, the combination of a number ofprinting-wheels,escapewheels and pallets therefor, and pallet-operatingcams moving in unison with said printing-Wheels for operating thepallets of the adjacent printing-wheels, a periodically-operatedreleasing device for one of said cam-bearing printing- Wheels, and meansfor moving said printingwheels forward consisting of a rotatabledriving-shaft, main actuating-spring therefor and means operativelyconnecting said rotating shaft with each of said printing-Wheelsindependently, substantially as described.

6. The combination with a spring-actuated printing-Wheel,A itsescape-wheel and pallet -having an arm connected thereto provided with alaterally-projecting stud, a pivoted arm formed with a shoulder adaptedto be moved outof 'and back into the path of movemenhof. said stud,spring-pressed 1inger pivoted to said arm having its end projectingslightly beyond said shoulder, and an electromagnet and armature 'foroperating said arm, substantially as described.

7. :In a time-stamp, the combination of ai spring-actuatedprinting-Wheel, an escape-v wheel moved by it, a pallet folzsaid escape-Wheel, and an arm secured to and operated by said pallet, areleasing-lever for'it, and' means for periodically operating said.releasing-lever, substantially as described.

8. In a time-stamp, the combination of a spring-actuatedprintingwheel,'escape-Wheel moved by it, a pallet for said escape-wheel,an arm secured to and operated by said pallet, a stud projecting fromsaid arm, a releasing-lever formed" with a shoulder adapted to beengaged by said stud, a spring-pressed iinger pivotally mounted on saidreleasing-lever, and an electromagnetfor operating said releasing-lever,substantiallyias described.

9. In a time-stamp, the combination of a series of printing-wheels oneof which has on it thirty-one printing characters, means for operatingit step'by step to present the printing characters thereon successivelyto printing position, an auxiliary device for controlling the operatingmechanismfor said printing-wheel, and automatic means for controllingthe operation of said auxiliary device, having as a coperative part ofvit a rotating cam having twelve divisions corresponding to the twelvemonths of the year, meansfor adjusting one of said divisions and acontrollinglever operated by said cam., substantially as described.

'10. In a time-stamp, the combination. of a series of printing-wheels,one of which has on it thirty-one printing characters for the days ofthe month, .and one of Whichhas on it' printing characters representingthe months of the year, means for operating said printing- Wheels stepby step, an auxiliary device forcontrolling 4the mechanism foroperatingsaid vday-printing wheel, which is operated by saidday-printing Wheel, and means for controlling the operation of saidauxiliary device which yis 'operated by said month-printing wheel,

substantially as described.

Il. Ina time-stamp, the combination of a day-printing Wheel,escape-Wheel and pallet v therefor, means for operating said pallet, a

pivoted leverl operatively connected with said pallet, pivotedbell-crank levers of dierent lengths, means for moving said pivotedlever into and out ci' coperative relation with one or more ot' saidbell-crank levers, and means for successively operating said bell-cranklevers, substantially as described.'

13. In a time-stamp,-the combination yot a series of printing-wheels,escape-wheels and pallets therefor,and pallet-operating cams movingin'unison -with the printing-wheels for operating the pallet ofvadjacent Wheels,

means operatively connected With and controlled by the month and yea-rwheels'. operated by the cam of the day-wheel for automaticallypresenting a different number of printing characters of the day-wheel atthe printing-point to correspond With the print-r ing'characterpresented by* the month and.

year Wheels, substantially as described.

I4. In' a time-stamp, the combination of the day-printing wheel,actuating device therefor, a bell-crank lever t, having an extension t3pivoted thereto, and operatively' connected f with the actuatingdevice'of said day-printing wheel,yaud means for controlling 'andoperating said bell-crank lever and its extension, substantially asdescribed.

15. In a time-stamp,`the combination of the day-printing Wheel,actuating device there- Afor, the bell-crank'lever t having an extensiont3 pivoted thereto, and operatively connected with the releasing deviceof said day-printing wheel, means for moving said bell-crank lever onits pivot, and devices operated by said day-printing Wheel for operatingthe extension substantially as described.

roo

IIO

Yof diefent lengths" adapted toengage said l extension 153, areamfmoving in unison with. y i if Witnesses:

16. Ixia tesaipislie eiiiination'e the l day-printingwheaepiiating'deviee therefor, v thebe}leranklevert having an extension3; f

'pivotedntheretm and operativeiy connected, i

with theactuatngdevice'of said day-printing Wheei, three bellcrank.levers having arms:

said day-printing wheeh .fo suceesively .oper-vv ating said belifcmnkervei's, and Vmeans forl movingthe extension of thelever tinto and Iobof coperative.relationvwith the arms of :said vbell-,claimk. levers,substantially, mi l der.i i Srbed: v I u estimonywhei'e-Lhave signed11152;5

name t0 this sp'eifcabiouvilithe presence 0 Lvsosubscribing.fvqnitnesses,1,.r .f f;

' NATHAN. SURE-N B. J. N0Y'Es,-fg

. ARTHUR F. rRimini-AL.; f

